#pragma once

const double PI			= 3.14159265358979323846;
const double PI_2		= 1.57079632679489661923;
const double PI_4		= 0.78539816339744830962;
const double _1_PI		= 0.31830988618379067154;
const double _2_PI		= 0.63661977236758134308;
const double _2_SQRTPI	= 1.12837916709551257390;
